Binocular-magnifier.



BEST AVAILABLE COP E. W. BEEBE.

BINOOULAR MAGNIPIEB.

nrmonzon nun no.2, 1m.

1,086,802. Patented Feb. 10, 1914 BEST AVAILABLE cor lAlitNi Mr 1* iiEUGENE W. BEEBE, OF MILWAUKEE, WISCONSIN.

BINOCULAR-MAGNIFIER.

Lette I Patented Feb. 10. 1914.

Application filed August 2, 1912. Serial No. 712,906.

To all whom it may concern Be it known that I, Eocene W. Bases, acitizen of the United States of America, and resident of Milwaukee,Milwaukee county, Wisconsin, have invented a certain new and usefulImprovement in Binocular-Magnifiers, of which the following is aspecification.

My invention relates to spectacles in general, but more particularly tothose commonly known as binocular ma nificrs and especially those of theSO-CtlllGt double binocular magnifying type.

Generally stated, the ob'cct of my invention is to provide a novei andhi hly eiiicient form of spectacles of the oregoing general character.

A special object is to provide anovel construction. and arrangementwhereby the weight of an optical instrument of this character ismaterially reduced, especially at the onter'endthereof, and wherebythesame is simpleand comparatively economical -to manufacture. a 25*Anotherobject is to'provideanovel and I im roved constructionwhereby'the magniig'ing'power 1 of binocular magnifiers of.

' this kmdcanbeincreasedor reduced pracatically'to any extent withoutincreasing the 3Q weight thereof in anjobjectionable manner-- that is tosay, without increasing the weight 1 of theforwardior'outer lensstructure.

-; -Anotherobject is to provide-a"-novel and '36 improved iconstruction"whereb'y speclally made len'ses are not necessary-rthat isto j say,whereby the forwardjior outer? lenses are cachimerely?an 'ordinaryoval,lcns withtthe inner end "thereof 1 cut?-*oif to& provide .1a

straight"idedgeyqit 5 being l -possible* by th s inietho'd'toeonstructmy,improved bmocular' ,1 5 magnifier's?frbnrordinariygoval -lenses;niches l a a thosensuaHyMoundm .l

h more new vi w- 1. Fig. 4 is a front elevation of the said spectacle.

As thusillustrated, it will be seen that my invention comprises a air ofhalf rims A connected by a nose-brid c B and rovided at their outer endswith temples b of the usual or any suitable, known or approvedcharacter. The lenses D are of the ordinary form, being simply ovallenses of the rimless form, and are each removably seated in the halfrim A provided for that purpose. The spring arms E have their rear endsrigidly secured to the rims A and are each in the form'of a smallbendable wire, the two wires converging toward their outer ends. Attheir said outer ends the spring arms E are provided with pivoted halfrims e for holding the outer or forward lenses F, which latter, it willbe seen, are of the rimless type, as they have no fixed rims. The halfrims e are connected together by an adjusting screw G, the said screwbeing provided with right and left threads engaging the threaded membersg on the lower edges of the rims e, whereby the rotation of the saidscrew will cause the arms E to move forward and away from each other.For the convenience of the user the screw G is provided with a thumbpiece 9, by which it can be rotated, the said thumb iece beingpreferably disposed at one en of said screw. The wires E are pivoted ate to the outer ends of the rims e, which latter are open at their innerends. The said spring arms E arevery light and, being of small bendablelwireyare a apted to be bent in any direction whilethe spcctacleslnrebeing fitted to the user'i Moreoventbe lense's T are preferablyoflrelativelv-low magnify :1 )o\vcr, \vhile tlio lenses l) areofrelative y high magnifying-jipowerr whereby the weight ofthe esiissfcoiisiderably"reduced at the uterlgiaen thereof."-.Inf'other' words'the enses -R' arej made as. light as possible,- and the)"qliiiredfjrnagnifying power is :then .a'obsine y. using'fheavierlensesin the rims -A, riii'gjthe forwardjstructure' of the y -light andyless''objectionable H will 'also be seen that the f 'r eachz made gfroin anordinary s, clia'sthcseffouhd on the market byt sin'i'ply'fgfrinding forcutting off one end f'theretifg yvherebyjs iall "ground lenses areitiers' thiis constructed i-The'binocular, ma

canbe 'usedincomunction with the lenses BEST AVAILABLE COP D ofditl'erent magnifying power, as it is here that the magnifyin power isdetermined or controlled. Ordinarily the lenses F are of minimummagnifying power, but should less magnifying power be re uired, this canthen be obtained by using re ucing lenses in the rims A-tha't'is to enby using rear lenses which will stillfurther reduce the magnifyingpower. In this way, it will be" seen that the -rear lenses D become anessential-clement of the binocular magnifiers-that is to say, areessential for magnii'ying purposes. An increase of the magnifying powerdoes not objcctionably increase the weight, in view of the fact that thelenses F are of minimum size and weight, the increase in weight. bytheuse of heavier lenses being close to the nose-bridge ll andimmethatelynat each side thereof. Thus the extreme outer end-of thestructure is'madc as light as possible and the spectacles are therebyreudcredmore comfortable and satisfactory in use. The space between thetwo straight inner edges f of the forward lenses is not obstructed byany feature of construction, the two lenses practically standing up freeand'clear from connections or features of construction which might tendto interfere with the vision.

---By ,using the lens holders 6 the lenses F can be used interchangeablywith other lenses. Ineach case, however, these lenses have straightinner edges. which canbe brought -,togethcr' or'separatcd to suit the86;,requ1rements of any particular case -fl'a'lhus thereisnothing.between'the lenscsto'interk fere-with visionn Itwillbe seenifromithe foregoing, that-,1 provide a pair.-ofmagnifying-spectacles in40 which the front lenses are practicallynot emplayedforinagnifying'purposes,butJmerely .t fonfccusing purposes,:2 theselenses alone, without anything else', being insufiicient' forith'epurpose of a pairiof spectacles of: this 4i kind.'-'{1Wi th ,theconstructions; heretofore, qumployedt the ma nifying ,was; done; bathe:forward; enses t at' is toisay bythelenses q w w- H v} heavy ma'gn fyng.-lense can batworn; coma fortably. whereas ,ingthe'saldlenses towardand away, reach 'other',,to varv the distance betweenthe saidbasegedgeauthereof, said holders being of flexible arms, (here wasconsiderable dilliculty experienced in wearing the spectacles andobjections were frequent. So far as I am aware, therefore, I am thefirst to provide front lenses which are employed for focusing purposesonly, and which are of such character as to render absolutely necessarythe use of another pair of magnifyin lenses in a device of this kind.

Vhat I claim as my invention is:

1. A pair of spectacles comprising a pair of front lenses of relativelylow magnifying power, for binocular focusing purposes, serving to reduceweight in front, and a pair of rear lenses of relatively high magnifyingpower.

2. A pair of s ectacles comprising a pair of front lenses 0 certainmagnifyiin power, for binocular focusing purposes, an a pair of rearlenses coiiperatm r with said front lenses to conjointly give adifferent magnifyin" power, whereby the rear lenses are essentiiil forthe required magnifying power.

3. A pair of spectacles comprising a wire frame, arms extending forwardfrom said frame, lens holders at the ends of said arms, free and open attheir inner or adjacent ends, and a rimless lens removably held ineachholder, with a clear space between the adj acent'bare edges of saidlenses.

4. A pair of spectacles comprising a wire frame, armsextendin forwardfrom said frame, lens holders at t e ends of said arms, free and open,at their inner or adjacent ends, and a rimless lens removably held ineach holder, with a clear space between the adjacent'bare edgesof saidlenses, each lens being and-oval with the inner end thereof .cutoff-straight to provide :aevertical inner edge therefor a a 5. iApairofspectacles comprising a wire frame, arms-extending forward from said-frame,lens holders at the ends of said arms, freeQand open-at the inneror adjacent ends, a ,rimleas' lens removably held in each holder, ,witha clear, space between .the adjacent bare .edgeavof said lenses,andmeans for adgustunconnectedexcept by said means. i a.

A pain? Ohzspectacles comprising a a 'd ea,v mounted 'onsaid'. frame,istancexfrorn ,the' ,face,"each lens of en} ordinaryjoval lens withthethereof cutiofi to provide a ,v'ertith' a'fclearispace'betweenthe twofcspectacles comprising a v c lenseegmounted on sa d frame, dis- PQB d.uldistanco from the face, each lens cQnrelating of .anordmary, oval lenswith them- Iner' 'end thereofjcut ofito provide a vertical with the. oldconstruction, in which the lenses were carried at the ends edge, withsaw space between the two bare edges thus formed, in combination withlit) BEST AVAILABLE COP inieans for varying the distance between said ees.

A pair of s ectacles comprising a pair of front lenses 0 relatively lowmagnifying power for binocular focusing purposes, serving to reduce weiht in front, and a pair of rear lenses of re atively high magnifyingpower, together with means for adjusting the papillary distance of saidfront lenses.

9. A pair of s ectacles comprising a pair of front lenses 0 certainmagnifyin power, for binocular focusing purposes, an a pair ofrear-lenses cooperating with said front lenses to conjointl give adifferent magnifying ower, where y the ma nifying power of tie sectacles, as a who e, is controlled close to tie face, whereb ''the rearlenses are essential for the require magnifying power, together withmeans for adjusting the pupil-- lary distance of said front lenses.

10. A air of spectacles comprising a pair of front cnses of relativelylow magnifying power, for binocular focusing purgoses, serv- 111gtoireduce wei ht in front, an a pair of rear lenses of re atively highmagnifying power, servinghto bring the wei ht close to the face,'togeter with means w ereby said rear lenses are removable and replaceable byother lenses to govern the magnifying power of said spectacles.

11. A air of spectacles comprising a pair of front enses of certainmagmfyin power, for binocular focusing purposes, an a pair of rearlenses for 006 erating with said front lenses to conjoint l give adiil'erent inagnifyin power, where y the magnifying power of t espectacles, as a whole, is controlled close to the face, whereby therear lenses are essential for the required magnif ing power, togetherwith means whereby sai rear lenses are removable and replaceable byother lenses to govern the magnifying power of said spectacles.

12. A pair of spectacles having lenses each of which consists of an ovallens having the inner end thereof cut off to form a vertical rimlessinner edge therefor.

Signed by me at Milwaukee, "Wisconsin, this 26th day of July, 1912.

E. \V. BEEBE.

Witnesses:

C. B. DAVIS, J o1m S. S'rovsa.

Copies of this patent may be obtained for are cents each, by addressingthe Commissioner of Patents, Wilmington, D. 0."

